<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    body {
      background-color: #ccc;
    }

    span {
      display: block;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      margin: 200px;
      background-color: #fff;
      box-shadow:
      1px 1px 1px 1px #FFF, 19px -15px 1px 1px #FFF, 51px -27px 1px 1px #FFF, 86px -14px 1px 1px #FFF, 112px 1px 1px 1px #FFF, 77px 15px 1px 1px #FFF, 47px 20px 1px 1px #FFF, 17px 1px 1px 1px #FFF, 20px 12px 1px 1px #FFF, 1px 1px 1px 1px #FFF
      ;
      position: relative;
      color: #333;
    }

    span::before {
      content: '';
      position: absolute;
      width: 30px;
      height: 30px;
      background-color: #fff;
      border-radius: 50%;
      left: -20px;
      top: 50px;
    }

    span::after {
      content: '';
      position: absolute;
      width: 20px;
      height: 20px;
      background-color: #fff;
      border-radius: 50%;
      left: -50px;
      top: 80px;
    }

    span i {
      font-style: normal;
      position: absolute;
      left: 10px;
      top: 10px;
      width: 200px;
    }

    p {
      width: 500px;
      height: 200px;
      margin: 50px auto;
      border: 2px solid #333;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 40px;
      color: #ccc;
      text-shadow: -1px -1px 0 #333, 1px 1px 0 #fff;
    }

    div {
      width: 300px;
      height: 120px;
      background-color: #fff;
      margin: 50px auto;
      border-radius: 10px;
      transition: all .5s linear;
    }

    div:hover {
      box-shadow: 2px 2px 12px 1px #333;
      transform: translateX(-3px) translateY(-6px);
    }

    h2 {
      width: 180px;
      height: 110px;
      border: 3px solid #eee;
      margin: 20px auto;
      border-radius: 10px;
      position: relative;
      overflow: hidden;
    }


    h2::before {
      width: 100%;
      height: 100%;
      content: '';
      display: block;
      background-color: #fff;
      transform: translateX(-15px) translateY(76px) rotate(45deg);
      box-shadow: 61px -44px 0 0 #fff;
    }

    h2::after {
      width: 20px;
      height: 20px;
      border-radius: 10px;
      background-color: #fff;
      content: '';
      position: absolute;
      right: 10px;
      top: 10px;
    }

    img {
      /* box-shadow: 10px 10px 10px 1px red; */
      filter: drop-shadow(100px -100px 0 0 red);
    }
  </style>
</head>
<body>

  <span>
    <i>你好鸭 ^_^</i>
  </span>

  <p>
    你好 世界 hello world
  </p>

  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>

  <h2></h2>

  <img src="./1234567.png" alt="">

  <script>
    /*

    */
  </script>
</body>
</html>
